The Trijicon HD XR night sights are engineered to address the dynamic challenges faced by law enforcement agencies. Building upon the features of the existing HD night sights, the Trijicon HD XR model is designed for enhanced target identification and engagement at extended ranges. The slimmer front sight post provides shooters with an expanded field of view, thereby improving target identification, accelerating engagement and allowing for better assessment of hit locations at greater distances. Pistol shooters requiring precise engagement capabilities in varying lighting conditions can rely on the Trijicon HD XR night sights. The green tritium lamps are covered by a 12 years warranty from the date of manufacture. The front post, measuring 0.12 inches in width, enhances the field of view, facilitating rapid target identification and engagement over extended distances The photoluminescent painted front outline, combined with a "U" notch rear and black-painted rear outlines, ensures rapid front post visibility in any lighting condition The front surface is designed with a steep hook to facilitate emergency situations, enabling one-handed slide manipulation with ease and efficiency The glass lamp, filled with tritium phosphor, ensures high visibility of sights across all lighting conditions, enhancing clarity and precision Tritium gas lamps are encased in protective aluminum cylinders, featuring additional cushioning made of silicone rubber for enhanced safety and durability Each Trijicon tritium lamp features a sapphire jewel cap, ensuring even light distribution and providing extra protection against punctures and cleaning solvents